Colombia NIT Number Guide — Format, Check Digit & Compliance
Número de identificación tributaria (NIT)
Colombia's tax identification number — the Número de Identificación Tributaria (NIT) — is issued by the Dirección de Impuestos y Aduanas Nacionales (DIAN) to taxpayers, responsible parties, withholding agents, and declarants for tax purposes. The legal basis is Article 555-1 of the Estatuto Tributario. The NIT is inseparable from the Registro Único Tributario (RUT), the national taxpayer registry through which DIAN identifies, locates, and categorizes every obligated party. Registration requirements and format rules are codified in Article 1.6.1.2.2 of Decreto 1625 of 2016.
Any entity or individual that engages in commercial activity, earns taxable income, imports or exports goods, employs workers, or receives payments subject to withholding must hold a valid RUT and therefore a NIT. Failure to update the RUT when information changes can trigger monetary penalties independently of any underlying tax obligation.
NIT Format
The NIT structure differs by taxpayer category.
Legal entities and assimilated entities
Legal entities — corporations, de facto partnerships, branches, public bodies, and assimilated structures — receive a 9-digit NIT plus one verification digit (DV). DIAN's Administrative Order 4 of 1989 established the checksum algorithm. NITs assigned to these organizations fall within the ranges 800,000,000–899,999,999 (historical block) and 900,000,000 upward (current block).
The verification digit is calculated using DIAN's mod-11 algorithm:
- Multiply each of the 9 NIT digits by a fixed weight sequence: 3, 7, 13, 17, 19, 23, 29, 37, 41 (from left to right).
- Sum all products.
- Compute the remainder of the sum divided by 11.
- If the remainder is 0 or 1, the DV equals the remainder directly. For all other remainders, the DV equals 11 minus the remainder.
Getting the DV wrong guarantees electronic invoice rejection at the point of transmission to DIAN — see the FAQ below.
Natural persons
For individual taxpayers the NIT can range from 1 to 13 digits plus a verification digit, depending on which document type underlies the assignment:
| Identification type | NIT range |
|---|---|
| Colombian cédula de ciudadanía (1–99,999,999) | Same as cédula number + DV |
| Colombian cédula de ciudadanía (≥1,000,000,000) | Same as cédula number + DV |
| Identity card or civil registration issued before NUIP | 700,000,001–799,999,999 + DV |
| Foreign nationals (passport, cédula de extranjería, PEP, PPT, etc.) | 600,000,001–799,999,999 + DV |
The verification digit is computed by DIAN's information system and is not considered part of the NIT itself; its sole function is to verify the uniqueness and accuracy of the assigned number.
RUT status and the NIT on e-invoices
Every NIT is associated with a RUT record that carries one of three statuses — active, suspended, or cancelled. An invoice issued by a supplier whose RUT is suspended or cancelled is fiscally invalid: Colombian buyers cannot use it to support costs or recover IVA credits. DIAN's public Consulta Estado RUT tool at muisca.dian.gov.co lets any party verify a counterpart's status without logging in.
Frequently Asked Questions
Why does the DIAN system reject my electronic invoice even when the NIT looks correct?
The most common cause is a wrong verification digit (DV). Colombia's e-invoicing system performs algorithmic DV validation at the moment of transmission — a single incorrect digit causes immediate rejection, just as if the NIT did not exist. The second-most-common cause is a mismatched legal name: DIAN's validator cross-references the name field in the XML against the RUT record, and any discrepancy (abbreviation, accent, word order) triggers rejection. A third cause is transmitting the invoice to DIAN after the permitted 3-business-day window from the issue date — the document is then rejected as late. Check both the DV and the exact registered legal name using the Consulta Estado RUT before onboarding any new supplier. [1] [2]
A foreign digital service provider told me they don't need a Colombian NIT — is that true after the PES rules took effect?
Under Law 2277 of 2022 (effective 1 January 2024), a non-resident digital service provider has Presencia Económica Significativa (PES) in Colombia when it earns 31,300 UVT or more in gross income from Colombian users in a calendar year, or systematically interacts with 300,000 or more Colombian users — including displaying prices in Colombian pesos (COP). Once PES is triggered, the provider must either register a RUT/NIT and remit 3% income tax on gross Colombian revenue directly to DIAN, or permit Colombian clients to withhold the equivalent amount at source. Claiming ignorance of PES does not suspend the obligation; DIAN can assess tax from the date the threshold was first crossed. The list of in-scope digital services includes streaming, cloud software, online advertising, data monetization, and marketplace intermediation. [3] [4]
My Colombian client withholds 20% from every payment — can a tax treaty reduce that rate?
Colombia's Estatuto Tributario Articles 406–408 require Colombian payers to apply retención en la fuente of 20% on gross payments to non-resident individuals and companies for consulting, technical assistance, technical services, and software licences — regardless of whether the service is performed inside or outside Colombia. Colombia has active double-tax treaties with Spain, Canada, Mexico, Chile, Portugal, the United Kingdom, Italy, and South Korea; under those treaties the withholding rate may fall to 10% or zero depending on the specific service category. Without a treaty, the full 20% is withheld and remitted directly to DIAN; the foreign supplier cannot recover it through a Colombian tax return unless separately registered. If your country of residence has a treaty with Colombia, submit a certificate of fiscal residence and the treaty benefit claim to your Colombian client before the first payment. [5] [6]
What are the penalties for issuing a non-compliant or missing factura electrónica?
Non-compliance carries a two-stage penalty under the Estatuto Tributario. First, a monetary fine under Article 652: 1% of the value of the non-compliant invoices, capped at 950 UVT (approximately COP 44.5 million at 2025 UVT rates), applies when invoices are issued but lack mandatory technical fields. Second, Article 652-1 authorises DIAN to seal and close the business premises for 3 to 30 days — the visible "CERRADO POR LA DIAN" sanction — when the obligation to invoice is not met at all. Repeat violations escalate automatically to the closure sanction regardless of the monetary cap. The e-invoicing obligation now covers virtually all commercial and service transactions in Colombia, and enablement as an electronic biller requires a current RUT with an updated email on file. [7] [8]
When must a Colombian buyer generate a Documento Soporte instead of requesting a factura electrónica from a foreign supplier?
Foreign suppliers are outside Colombia's electronic invoicing ecosystem and cannot issue a valid Colombian factura electrónica. When a Colombian company pays a non-resident for goods or services, it must generate a Documento Soporte en Adquisiciones through its own DIAN-enabled system. This self-issued document substitutes the invoice for cost deduction and IVA credit purposes: without it, DIAN disallows the expense entirely and the IVA credit is forfeited. DIAN Resolución 000167 of 2021 governs the technical XML format; if the foreign counterpart holds no Colombian NIT, the Documento Soporte may record the supplier's foreign tax identification number from their country of registration. The Documento Soporte must be transmitted to DIAN within the same timeline as a regular e-invoice. [9] [10]
Can a freelancer or SME switch into or out of the Régimen Simple de Tributación mid-year, and what are the income caps?
Enrollment in the RST is not permitted mid-year — registration must occur by the last business day of February of the year in which the regime is to apply (for 2026, the deadline was 27 February 2026). Eligible taxpayers are natural persons or companies whose shareholders are Colombian-resident natural persons with prior-year gross income below 100,000 UVT; those working exclusively in liberal or intellectual professions face a lower cap of 12,000 UVT. Certain activities are excluded outright (weapons manufacture, fuel imports, vehicle sales). Voluntary exit back to the Régimen Ordinario is also only effective from 1 January of the following year — an accidental threshold breach or missed filing deadline may strand a taxpayer in the wrong regime for the full calendar year, triggering a surprise tax settlement. [11] [12]
A foreigner without a cédula de extranjería told me they cannot open a Colombian bank account — is the RUT the missing link?
Most Colombian banks require a valid RUT as a prerequisite for opening a business or personal account, and the RUT in turn requires a formal immigration document as the underlying identifier. The practical sequence for a foreigner is: obtain the appropriate visa → convert to cédula de extranjería (issued by Migración Colombia) → then register a RUT using the cédula as the identification type, which generates the NIT in the 600,000,001–799,999,999 range. Digital nomad visa holders are eligible for the cédula de extranjería and can therefore complete this sequence lawfully. Attempting to register a RUT with only a passport is possible but results in a provisional NIT that some banks and counterparts refuse to accept. Fintech platforms (neobanks) are a workaround while the immigration process is pending. [13] [14]
Related Resources
- Chile Tax ID Guide — Chile's RUT also uses a mod-11 check digit with a similar verification logic
- Mexico Tax ID Guide — RFC structure for individuals and legal entities in a neighboring Latin American system
- Peru Tax ID Guide — RUC format and SUNAT obligations for cross-border comparison
- Brazil Tax ID Guide — CPF/CNPJ mod-11 checksum and NF-e e-invoicing mandates
- How to verify a RUT in Chile — Step-by-step portal guide for checking RUT validity
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